<html>
    <head>
        <title>Itowns - GeoJSON drag and drop</title>
        <meta charset="UTF-8">
        <link rel="stylesheet" type="text/css" href="css/example.css">
        <link rel="stylesheet" type="text/css" href="css/LoadingScreen.css">

        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <script src="https://cdnjs.cloudflare.com/ajax/libs/dat-gui/0.7.6/dat.gui.min.js"></script>
    </head>
    <body>
        <div id="viewerDiv">
            <div id="description">Drag and drop a Geojson or Gpx file onto the
                viewer, and see it loaded as a ColorLayer. Only files with the
                crs projection <b>EPSG:4326</b> can be projected correctly in this
                demo. More information about the plugin used <a
                 href="http://www.itowns-project.org/itowns/docs/#api/Plugins/DragNDrop"
                 target="_blank">in the documentation.</a></div>
        </div>
        <script src="js/plugins/DragNDrop.js"></script>
        <script src="../dist/itowns.js"></script>
        <script src="js/GUI/LoadingScreen.js"></script>
        <script type="text/javascript">
            // Define initial camera position
            var placement = {
                coord: new itowns.Coordinates('EPSG:4326', 2.351323, 48.856712),
                range: 250000,
            }

            // `viewerDiv` will contain iTowns' rendering area (`<canvas>`)
            var viewerDiv = document.getElementById('viewerDiv');

            // Instanciate iTowns GlobeView*
            var view = new itowns.GlobeView(viewerDiv, placement);
            setupLoadingScreen(viewerDiv, view);

            // Add one imagery layer to the scene
            // This layer is defined in a json file but it could be defined as a plain js
            // object. See Layer* for more info.
            itowns.Fetcher.json('./layers/JSONLayers/Ortho.json').then(function _(config) {
                config.source = new itowns.WMTSSource(config.source);
                var layer = new itowns.ColorLayer('Ortho', config);
                view.addLayer(layer);
            });

            // Add two elevation layers.
            // These will deform iTowns globe geometry to represent terrain elevation.
            function addElevationLayerFromConfig(config) {
                config.source = new itowns.WMTSSource(config.source);
                var layer = new itowns.ElevationLayer(config.id, config);
                view.addLayer(layer);
            }
            itowns.Fetcher.json('./layers/JSONLayers/WORLD_DTM.json').then(addElevationLayerFromConfig);
            itowns.Fetcher.json('./layers/JSONLayers/IGN_MNT_HIGHRES.json').then(addElevationLayerFromConfig);

            DragNDrop.setView(view);
            DragNDrop.register('geojson', DragNDrop.JSON, itowns.GeoJsonParser.parse, DragNDrop.COLOR);
            DragNDrop.register('gpx', DragNDrop.XML, itowns.GpxParser.parse, DragNDrop.COLOR);
        </script>
    </body>
</html>

